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Патент USA US2118006

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May 17, 1938.
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2,1 18,006
G. F. coUcH
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RAILWAY
TRUCK
iled Jan. 14, 1,935
4 Sheets-Sheet 1
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May '17, 193s.
' G, E CÓUCH
' RAILWAY TRUCK
2,118,006
May 17,1938.
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' G. F. coUcH
2,118,006
RAILWAY TRUCK
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Filed Jan. 14, 1935
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May .17, 1938.
2,118,006
G. F. coucH
RAILWAY TRUCK
Filed Jan. 14, 1955
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2,118,006?
i Patented May 17, 1938@
' UNITED s_"íi‘a'ra-s> 'Pa'rizlwrv
ori-*ICE ’
2,118,006
RAILWAY TRUCK
Glenn F. Couch, Rochester, N. Y., assignor to
The Symington-Gould Corporation, Rochester,
N. Y., a corporation of Maryland
ß
Application January 14, 1935, Serial No. 1,792
25 Claims. (Cl. 105-193)
'I'his application is a. continuation, in part, of line 8_8 of Fig. 7, looking in the direction of th
my ,application 4for railway trucks, Serial No.
575,080, ñled November 14, 1931;
Figure 9 is a view corresponding to Fig. 1, but
This invention relates to railway trucks, and, showing a still further embodiment oi my in
5 more particularly, _to such involving a device vention.
5
adapted to snub the action of truck bolster
Figure 10 is a sectional view on the line lil-Á-ill springs.
of Fig'. 9, looking in the direction of the arrows.
arrows.
.
,
'
'I'he principal object of my invention, gen
Figure 11 is a view also corresponding to Fig.
erally considered, is to providea friction unit as
10 sociated with a truck bolster and adapted to co
' 1, but showing an additional embodiment of my
operate with the bolster springs by snubbing the
action thereof.
Another object of my invention is to-provide
a friction device on a railway truck acting be
tween the compression member of a side frame
invention.
-
AFigure 12 is a sectional view on the line itl-i2
of Fig. 11, looking in the direction of the arrows.
Figure 13 is a View corresponding to Fig. 1, but
showing a further embodiment of my invention.
Figure '14 is a horizontal sectional'view on the 15
and the associated bolster for, snubbing the re
line It--ll oi’ Fig. 13, looking in the direction
coil of the bolster springs.
of the arrows.
-
_
.
A further object of >my invention is the pro
vision of a cushioning device Vcomprising a spread
v20 er or central wedge element adapted to be con
nected or anchored to a railway truck side frame
for vertical movement therewith, friction wedges
normally engaging aportion of a bolster, and
resilient means associated with said spreader ele
25 ment and wedges for urging said wedges into en
gagament with the spreader element and co
.. operating friction surfaces on the bolster.
Other objects and advantages of the invention
relating to the particular arrangement and con
30', struction of the various parts will become ap
parent as the description' proceeds.
Referring to the drawings illustrating my in
vention, the scope whereof is defined by the ap
pended claims:
Figure 1 is a fragmentary side elevation of a
railway vehicle truck with portions thereof shown
in vertical section.
Figure 2 is a fragmentary vertical transverse
sectional view of that portion of the truck shown
40 in Figure 1, portions of the bolster and associated
springs and snubbing device being shown in ele
vation.`
v
,
Figure 3 is a fragmentary view corresponding
to Figure 2 but showing a modification.
-Figure 4 is a‘fragmentary view corresponding
to Figure 1, showing a modiiledform of snubber.
Figure 5 is a plan of the snubber shown in Fig
ure 4, the'central wedge element being shown in
horizontal section.
Figure 6 is a fragmentary side elevation of a
railway truck corresponding to Fig. 1, but show
ing another embodiment of my invention.
~
Figure 7 is a view corresponding to Fig. 1, but
showing a further embodiment of my invention.
Figure 8 is a horizontal sectional view on the
'
Figure 15 is a view corresponding to Fig. 1, but
showing a stili further embodiment of my inven
tion.
1
'
Figure 16 is a horizontal sectional view on the zo
line I6--|6 of Fig. 15, looking in the direction
of the arrows.
Referring to the drawings in detail, like parts
being designated by like reference characters, and 25
ñrst considering the embodiment of my invention
shown in Fig‘....:es--1 and 2, there are shown por
tions of a railway truck l involving a side frame
2 having a compression member 3, and a tension
member l spaced at intermediate portions‘there- 30
of by bolster guide columns 5, leaving a bolster or
window opening 6 therebetween.
Y
The tension member 4 is provided with a spring `
plank seat portion 6’ which normally serves for
the support of the associated spring plank 1. g In 35
the present embodiment, the side frame 2, the as-sociated' spring plank 1, and upper and lower
spring plates 8 are of the type described in the
Barrows Patent No. 1,652,808, of December 13,
1927, although it will be understood that I do not 40
wish to be limited to this showing, as my inven
tion is adapted for use with other Ltypes of side
frames, spring planks and spring plates.
An associated bolster or load-carrying member
8 has an end received in the bolster or window 45
opening 5 of the frame 2 and supported on a nest
of springs I Il disposed between the spring plates
8. The bolster >has outer and inner guide lugs
II and I2, respectively, the lugs Il being suiiì
ciently short so as to permit the bolster to be in- 50
serted to interlocking position with the frame
by first inserting the end of the bolster in the en
larged lower portion |73 of the bolster opening
and then moving it upwardly to interlocked posi
tion with the guiding portions l'l of the columns £55`
2
I 5 before application of the supporting springs l0.
ments, except that vthe central spreader element
In order to `'snub the action of the springs Il,
I provide a snubber or cushioning unit Il. said
unit comprising an upper, inner. or central wedge
or spreader friction- element i6, preferably pro
i6“ is of the rectangular rather than cylindrical
conical type, and has the lower portion provided
vided with a notch i1 adjacent its upper end, in
terlocking with the beading I8 on the outside of'
the compression 'member 3 of the’frame, and a
relatively short length of beading I9 on the inner
side of the frontiiange 2li of said compression
member 3. The lower portion of the spreader
' element It is preferablyprovided with converg
ing friction surfaces or formed double frusta-con
ical, as indicated at 2|, and interlocked with in
l5 termediate friction means or wedges 22 formed
with inner friction surfaces 23 engaging the cor
respondingly inclined double truste-conical fric
tion portion 2l of the centrfl element Il. The
outer surfaces of the wedges 22 in the present
embodiment are preferably cylindrical and nor
with double inclined wedge surfaces 2|'b rather v
than double frustro-conical portions, said sur
faces being >engaged by corresponding surfaces
on a pair of double friction wedges 22b which,
as in the previous embodiments, provide shoul
dered or interlocked relationship, thereby pre
10
venting undesired displacement of the parts.
In the present embodiment, the wedges 22h
may be urged «into frictional engagement with
the spreader element lib and portions of the ap
ertured part of the bolster 9|’ or wear plates 25"
therein. The wear'plates, it will be understood, 15
preferably have their outer ends formed with in
terlocking lugs 2i” for holding them in place after
application'. As in the preceding embodiment,
the wedges 22b are desirably resiliently urged into
engagement with the wedge surfaces 2lb on the
mally urged into engagement with friction sur- , spreader I6h and on Áthe wear members25b- by a
, faces 24~ on an apertured portion 25 of the bolster coil spring 30° mounted -on an extension 2lh be
, 9, or bushing received in anfaperture thereof. tween spring caps3|b and 32°, and held in placel
The bushing or outer friction element 25' of the
present embodiment, into which the inner fric
tion 'element Ii telescopes and leaves a -tapering
or wedge-receiving space therebetween, is desir
by a nut 29° threaded on the extension 28°.' Ex- l'
cept> as speciiicallydescrilíed in connection with
ably formed with a shouldered upper’portion 26 ' 2, or that of Figure 3.
for limiting downward movement thereof and a
30 tongue 21 split away from the lower peripheral
portion thereof and engaging a corresponding
notch 23 in the bolster, to thereby limit upward
movement thereof and lock the bushing in place.
In order to hold the wedge elements in engage
ment with one .another and the wedges 22 in
engagement with the friction surface of the bush
ing 25, the upper or central wedge element it is
desirably formed with a depending portion 2l,
the lower end of which is desirably threaded for
40 receiving a nut 2l and associated resilient device
or coil spring 3l, preferably provided with upper
and lower spring washers or caps 3| and 32,
respectively.
_
When such a snubbing device is used on a rail
45 way truck as disclosed, it will be understood that
the capacity of the bolster springs I0 is augment
ed. to some extent, by the cushioning action of
the device upon downward movement of the bol
ster with respect thereto. It will be seen. how
50 ever, that the capacity of the device is greater
25
the embodiment of Figures 4 and 5, the same may
correspond with the embodiment of Figures 1 and
It will also beunderstood '
that the snubber of Figures land 2 and that of .'30
Figures 4 and 5 may be interlocked with the'com
pression member either in the manner'shown in
Figures l and 2, or in the manner shown in Fig.-y
ure 3.
,
Referringnow to the embodiment of my_inven
tion illustrated in Figure -6, there are shown por 35
tions of a railway truck I° involving a side frame '
2° having a _compression member 3° and a tension "
member 4° spaced at intermediate portions there- ' .
of by bolster guide columns 3°, leaving a bolster '
40
or window opening 6° therebetween.
As in the first embodiment, the tension mem
ber 4° is shown supporting an associated spring
plank 1° carrying a nest of springs I0° having '
upper and lower spring platesrli’, said nest of
springs serving for the support of the associated
bolster 9°.
.
'
Y
In order to snub the action, and particularly
the recoil, of the springs II°,4 I provide one or
more snubbers |5° for the nest'of springs Il°,
each snubber being associated with one of the
coils of the nest of vsprings |l° and comprising
for snubbing the recoil of the springs i2, because
the friction generated by movement of the bol
a central wedge or spreader friction element |6°, ,
ster upwardly' over the snubber i! supplements Ípreferably provided with a head I1° adjacent its
the action of the spring 3B in urging the friction upper end interlocked with or engaging the up
55 surfaces into' engagement with each other, so that
per spring plate 8° or a countersunk shouldered -
the recoil of the springs is eiliciently snubbed or
portion l3° thereof. 'I'he lower portion of the
cushioned.
spreader element 48° is provided with downwardly
-
Referring no`w to the embodiment of my in
vention illustrated in Figure 3, it will be seen that
60 I have shown a friction snubber l5'L which may
be identical with that of the preceding embodi
ment, except that the upper portion of the- central
spreader member I6a is interlocked with inward
ly extending lug orilange »portions Il* on> the
65 main flange portions 20° of the compression mem
ber 3° lof the side frame 2‘, rather than being
interlocked to merely one of the flanges of the
compression member. ’ As in the preceding em
diverg'ing friction surfaces or formed frusto-con
ical, as indicated at 2|°, and engaged by inter
mediate friction aneans or wedging elements 22° 60
formed with inner friction surfaces 23° engaging
the correspondingly inclined frustó-conical fric
tion portions 2i° of the central element |6°.
The outer surfaces of the wedging elements'v
22° in the present embodiment are preferably
cylindrical and normally urged into engagement
with friction surfaces 24° on an upstanding lcy
lindrical or collar portion 25° of the Vlower spring
plate 2° forming an outer friction element. The
intermediate friction elements 22° are normally
bodiment, the lower portion of the friction ele
70 ment i8* extends into a bushing 28° interlocked
with the associated bolster l".
Referring now'to the embodiment of my inven
4urged into engagement with the central friction
post or element I6°, and the outerfrictîon ele
tion umstrated in Figures 4 andÄ 5, s. snubbmg
device lib is there shown which may b_e identical
75 with the device I5 'or Il* of the previous embodi
ment or shell 25° by a coil spring 30° acting- be
tween the upper surfaces of the wedges or seg
mental annular members 22° and the lower sur
75
3
l 2,118,006
face of the upper spring plate 6°. In order to
hold the segmental wedge members 22° assem
bled with the friction post or frusto-conical por
tion 2|c thereof, I desirably encircle said wedge
members 22e by a ring or wire 3| received in a
groove 32, which ring is loose enough to allow
full action of the spring 30° in pressing the wedge
members 22° into engagement with the associated
friction surfaces, while tight enough to prevent
10 said wedges fromv dropping on the end oi' the
frusto-conical portion 2|c of the friction post
Ilß, when the latter is separated from the up
standing friction collar 25°.
«
When a snubbing device as just described is
16 used on a railway truck, it will be understood
that'while the capacity of the bolster springs |0°
,is augmented to some extent by the cushioning
action of the device I5c upon downward move
ment of the bolster with respect thereto, yet the
20 capacity of said device is greater for snubbing
f the recoil of the springs. The friction generated
by movement of the upper spring plate 6c up
wardly, and the corresponding upward move
l s ment of the portion |6° and wedges 22c over the
25 friction surfaces 24", said wedges being pressed
into operative engagement with the associated
parts by the action of the spring 30e, thereby
, results in an. efficient snubbing action on the
associated nest of springs I0".
30
Referring now to the embodiment of my in
vention illustrated in Figures 7 and _8, there are
shown portions of a railway truck |d involving
a side frame 2d having a compression member 3d
.and a tension member4d spaced at intermediate
35 portions thereof by bolster4 guide columns 5d,
leaving 4a bolster or window opening 6d there
between.
The tension member 4d, asin the ñ‘rst embodi
ment, is shown supporting an associated spring
40 plank 1", although it will be understood that I
do not wish to be limited to the employment of a
spring plank. An associated bolster or load-car
rying member, 9d has an end received in the
window or bolster opening 64 and is supported
springs 30d, the lower ends of which are received
in pockets 36 in the wedges 22d, and the upper
ends of which surround depending lugs 39 on the
housing member 25d. The action of the snubber
I5*i of the present embodiment is" similar to that
of the snubber I5 of thc embodiment of Figures
1 and 2, except that the corresponding parts are
transposed, amounting to turning the snubb’er
upside down without affecting its action.
, '
Referring now to the embodiment of my in A10
vention illustrated in Figures 9 and 1_0, there are
shown portions of Ia railway truck |° involving a
side- frame 2° having a'compression member 3e
'and a tension member '4° spaced at intermediate
portions thereof by guide columns 5°, leaving a 15
window or bolster opening 6e therebetween.
'I'he tension member 4° serves for the support
of >an associated spring plank 1° in the present
embodiment, although I do not wish to be lim
ited to the use of a plank. 1 Said spring plank le, 20
in turn,- supports a nest of bolster springs I 0°,
with associated upper and lower -plates 8e, al
though the plates, of course, may be dispensed
with, said upper plate, in turn, supporting an
associated bolster 92
`
'
~
. In order- to snub the action of the springs Ille,
and particularly the recoil thereof, I provide a
snubber or cushioning unit I5e between each side
ofthe bolster 9e and the associated guide col
umn 5¢. Inasmuch as the snubbers are desir
ably identical, only one will be described. Each
snubber comprises a wedge member i6e provided‘
with flanges 40 and 4|‘overlying and underlying
the bolster 9° to cause said wedge I6'E to move
with said bolster. The wedge I6e has an outer 35
friction surface 2|e which is inclined downwardly
and outwardly and normally engagedby a cor
respondingly inclined friction surface 22|e on an
associated wedge 22e. Said wedge 22e fis urged
between the wedge I6e and the web of the guide
column 5e, or a Wear plate 42 secured thereto,
by means of a coil spring 308,; the upper end of
which surrounds a lug 39e- depending from the
web of the compression member 3e and the lower
45 on a nest of springs ||lc1 disposed betweenfspring , end of which surrounds a lug 43`upstanding from 45
plates 8d. The bolster has outer and inner guide
lugs Ild and I2“, respectively, as is usual.
_the top of the Wedge 22°, thereby acting to effec
tively snub upward Amovement of the bolster 9e,
In order to snub the action of the springs I0“, , i-n‘a manner which will be understood from the
I provide a snubber or cushioning unit I5“, said
50 unit comprising a lower, inner or central wedge
preceding disclosure.
’
Referring now to the embodiment of my ¿in 50
or spreader friction element 16d interlocked with . vention illustrated in Figures 11 and 12, there is
55
or connected to the bolster 9d, as by means of a
shown a side frame 2f formed with a bolster open
seat. member 33 welded to the lower web of the
bolster, as indicated at 34, and provided with
ing 6‘, receiving a bolster 9‘, which bolster is sup
ported-directly by a nest of springs |0f, with upper
and lower spring plates` 8f, _resting directly on 55
the tension member 4f of the bolster without the
upstanding angular flanges 35, portions of which
overlie base flange portions 36 on the wedge
member |64. `The upper portion of- the spreader
element |6,d is provided with upwardly converg
ing friction surfaces 2id, normally engaged by
intermediate friction means or wedges 22d,
formed with inner inclined friction surfaces 23d
engaging the correspondingly inclined friction
surfaces 2id of the central element |6d.
The- outer surfaces of the wedges 22d in the
65
present embodiment are normally urged into
engagement with correspondingly curved or flat
tened friction surfaces 24d on an outer friction
ciement'or housing 25d connected to theupper
70 web of the compression member 3n as by means
of a bolt 31 and downwardly opening to receive
the -wedges I6d and 22d. The wedges 224, only
one of which is illustrated, are urged into en
gagement with the spreader I 6‘i and the outer
75 friction element or housing 25*l by means of coil
employment of a spring plank. The bolster in
the present embodiment is formed with vertical
cylindrical surfaces 44 cooperating with corre
spending cylindrical surfaces 45 on a spring cap
member 46 disposed between -the bolster 9t and
the upper spring plate Bf, which cap member is
interlocked with wedges I6t of snubbing devices
|51' similar to the snubbing devices I5e of the pre
ceding embodiments, as by means of lugs-41 re
ceived in corresponding pockets'48 in the spring
cap or bolster end housing member 46.
_
V'I'he bolster ilr is allowed to angle horizontally
with respect to the end receiving frame 46, and
side frame 2f to which said end frame is con
nected, on account of the coaxial 'cylindrical sur
faces 44 on the end of the bolster which nest with
corresponding surfaces on said frame 46. The
surfaces 44 on the bolster and the correspond
ing surfaces 49 on the frame or housing 46 ter
to
anaooo
4
ingly inclined friction surface 23¢ on an associated-
minate at their outer ends in portions 50 and 5|
wedge 221. Said wedge 22l is urged between the
wedge |6¢ and the web of the guide column 5I, or
which together provide cylindrical _pockets re
ceiving locking members 52, only one of which is
-illu Ttrated. Each locking member desirably com
prises a normally vertical cylindrical portion 53
awcar plate 42! secured thereto, by means of a
coil spring 3M, the upper end of which surrounds
a lug 39' depending from the web of the com
pression member Il, and the lower end of which
and a lower laterally extending lug 5l and is
initially inserted with the lug extending outward
so as to pass through a corresponding elongated
surrounds a lug “I opstanding from the top of
the wedge 22', thereby acting ~to snub the recoil
aperture (not shown) in the base of the frame
10 46 formed to accommodate the body and lug por
tions. When the locking member 52 has been
inserted so that the lug 54 lies above the base
portion of the frame, the lug is then turned so
of the bolster springs Il'.
,
10
Inasmuch as the snubbers I5*lr of the present
embodiment are double-acting, I form side and
outer friction surfaces 51 disposed on either side
of the friction surfaces 2|s and inclined down
as to point inward or toward the other locking
wardly and inwardly, and normally engaged by
15 member (not illustrated), while the bolster is ele
vated so that when the bolster is dropped to posi
tion, as shown in Figure 11, the lug portion 5l
is received in a pocket 55 in the lo'wer surface of
the bolster and securely held in place. Sufficient
20 clearance is provided between the locking-mem
bers 52 and the bolster Bf and frame 46 to allow
for the desired flexibility or angling in a hori
zontal plane, while preventing Áundesired dis
placement or withdrawal of the bolster. The con
25 struction of the» bolster and manner of connect
ing it to a supporting frame is substantially as
described and claimed in my U. S. Patent num
bered 2,069,220, issued February 2, 1937.
The wedge members |6f are received between
sol the flanges 55 of the guide columns 5f of the side
15
Vcorrespondingly inclined friction surfaces 58 on
bifurcated portions 59 of an associated wedge 60.
The bifurcations 59 of the wedge 60 are urged,
between the side portions of the wedge |68 and
the friction surface on the guide column engaged 20
by the wedge 221, by means of a coil spring 6|,
the upper end of which surrounds a lug 52 de
pending from the wedge lll, and the lower end
of which engages a supporting portion 53 of the
frame 2K, which portion is desirably provided with 25
a spring-positioning flange il. It Iwill thus be
seen that in -accordance with the present em
bodim'ent, movement of the bolster either up
wardly or downwardly is eifectively snubbed by
30
the friction mechanism described.
Referring now to the embodiment of my in
frame 2f and thereby serve to prevent undesired
withdrawal of the bolster from the side frame. vention illustrated in Figures 15 and 16, there are
Each wedge |6f has an outer friction surface 2|t shown portions of a railway truck |h involving a
which is inclined downwardly and outwardly and ` side frame 2h having a compression member 3h
normally engaged by a correspondingly inclined and a tension member 4h, spaced at intermediate 35
friction surface 231 on an associated wedge 221. portions thereof by guide columns 5h, leaving a
_ Said wedge 22't is urged between the wedge I5x window or bolster opening 6h therebetween.
The tension member 4h serves for the~ support
and the web of the guide column 5f, or a wear
plate ‘2f secured thereto, by means of a coil spring of an associated spring plank 11,1, although I do
not wish to be Alimited to the use of a plank. Said 40
40 301, the upper end of which surrounds a lug 39’
depending from the web of the compression
member- 3f and the lower end of which surrounds
a lug “f upstanding from the top of the wedge
22f, thereby acting to effectively snub upward
movement of the bolster 9* in a manner which
`will be understood from the preceding descrip
tion.-
`
-
Referring now to the embodiment of my inven
tion illustrated in Figures 13 and 14,.there are
shown portions of a railway truck |¢ involving a
plank, in turn, supports a nest of bolster springs
lllh, with associated upper and lower plates 8h,
said plates. however, being optional. The upper
plate 8h, or 'top of the nest of springs, in turn
supports an associated bolster 9h;
45
In order to snub the action of the springs I0”,
and particularly the recoil thereof, I provide a
snubber or cushioning unit |5h comprising a pair
of wedge members I6h urged away from each
other and horizontally -by a coil spring 30h, the 50
side frame 2'l having a compression member 3¢ ' ends of which are received in pockets 55 in _said
and a tension member 4l spaced at intermediate
portions thereof by guide columns 58, leaving a
' window or bolster opening 51 therebetween.
55
,
The tension member l? serves for the support of
an associated spring plank 18 in the present em
bodiment, although I do not wish to be limited to
the use of a plank. Said spring plank 1K, in turn,
supports a nest of bolster springs |08, with asso
ciated upper and lower spring plates BS, although
the plates, of course, may be dispensed with.
The upper plate 8B, in turn, supports an asso
ciated bolster 9g.
In order to snub the action of the‘springs I0“
in both directions, I provide a snubber or cushion
ing unit |58 between each side of the bolster and
the associated guide column 5S. Inasmuch as
the snubbers are desirably identical, only one will
be described. Each snubber comprises a wedge
70 member I6c provided with flanges Il!! and IlIz
overlying and underlying the bolster” to cause
said wedge member |62 to move therewith. The
wedge I6' has an outer intermediate friction sur
face 2|I which is inclined downwardly and out
75 wardly and normallyengaged by the correspond
wedges |611.
Each wedge I6’Ik has a 'downwardly
and outwardly inclined friction surface 2 |n which
is normally urged into engagement with a corre
spondinzly inclined friction surface 23h on the 55
web of the associated guide column 5h, or a Wear
plate 42h secured thereto, kby means of the coil
spring il?. The snubbing device of the present
embodiment, of course, acts to increase the capac
ity of the nest of springs |||h as it provides some 60.
resistance to downward movement of the bolster.
It will, of course, be understood, however, that
the main 'snubbing' action of the device I5h is
against recoil of the springs |||h or upward move
ment of the bolster 9h, on account of the fact 65
that the friction surfaces on the movable friction
wedges I6l1 are inclined downwardly and away
from one another.
Although I have disclosedpreferred embodi
ments of my invention, it will be understood that 70
modifications may be made within the spirit and
scope of the appended claims, and that the terms
used are those of description and not of limita
tion. It will also be clear that although only a
portion of one side frame' has been illustrated 75
2,118,000
receivingthe corresponding end of the bolster,
the other end of the bolster is preferably corre
spondingly received in thel bolster opening of an
other side frame. It will also be understood that
certain features of one embodiment may be inter
changed with features of another and that spring
planks and spring plates, for.example„may be
employed or omitted, as desired.
f
10
1. In a railway truck, in combination, a side
frame having a bolster opening, a bolster with an
end received therein, resilient means supporting
said bolster, `and means for snubbing the action
of said resilient means comprising a wedge ele
15 ment connected to said frame for the transmis
sion -of vertical forces therebetween in both direc
tions, friction means normally engaging a portion
of the bolster, and resilient means associated with
5
elements having converging friction surfaces,
means for holding one of said elements for vertical
movement with said frame in both directions,
said other element being arranged to act on the
top of said spring for opposing recoil, friction
Wedges disposed between the telescoped portions
of said outer and inner friction elements in en
gagement with sa'ld converging friction surfaces,
and resilient means acting on said wedges and
said inner element, longitudinally of the axis of
the latter, for urging said wedges into engage
ment with said converging friction surfaces and
the corresponding friction surfaces on the other
friction element. l
7. A snubbing device comprising outer and
inner friction elements normally telescoping and
leaving a tapering space between friction surfaces
thereof, one oi’ said elements being adapted to
said wedge element and friction means for urg
20 ing the latter into engagement with the wedge I be supported by an associated side frame for ver- .
element and bolster.
_
2. In a railway truck, in combination, a side
frame having a bolster opening, a bolster with
an end received therein, resilient means support
25 ing said bolster in said opening, said bolster hav
ing an upright aperture therethrough, means
defining said aperture and providing friction sur
faces, friction wedge means engaging said friction
surfaces, a spreader element with its lower por
30 tion disposed in engagement with said wedge
means and its upper portion connected to the
frame above the bolster opening, and resilient
means urging said spreader element into engage
35
ment with said friction wedge means and said
friction wedge means into engagement with‘the
friction surfaces of the bolster.
-
3. A cushioning device comprising a wedge ele
ment one end of which is notched to receive and
interlock with beading on an associated railway
40 truck side frame,.friction wedges adapted to en
gage friction surfaces on an associated bolster
and engage opposite sides of said wedge element,
said wedge element having a portion extending
beyond said friction wedges, and resilient means
45 thereon adapted to urge said friction wedges into
engagement with said wedge element and friction
surfaces on the associated bolster.
4. In a railway truck, in combination, a side
frame-having a bolster opening, a bolster with an
50 end received therein, said bolster having an up
tical movement therewith in both directions, and 20
the other of which is adapted to exert down
ward snubbing action on the top of an associated
bolster-supporting spring, friction wedges dis
posed in said tapering space between said friction
surfaces of said inner and outer friction elements, 25
and resilient means acting on anend portion vof
the inner element and the blunt ends of said"
wedges for urging the latter into'simultaneous en
gagement with the friction surfaces on both outer and inner elements.
30
8. In a railway truck, in combination, a side
frame member having a bolster opening, a bolster
member with an end received therein, resilient
means supporting the bolster member from said
frame, and friction means acting between por 35
tions `of said members for snubbing the recoil
, of said resilient means, -said friction means com
prising a wedge secured for movement with one of
said members and another wedge urged by a
spring between, and into frictional engagement 40
with, said first-mentioned wedge and a friction
member secured for vertical movement with the
other of said members.
9. In a railway truck, in combination, a side
frame having a bolster opening, a bolster with an 45
end received therein, resilient means supporting
said bolster from said frame, and friction cushion
ing means 'acting between said bolster and that
part of the frame thereabove, said means compris.
ing an outer friction element secured to the frame 50
and extending into an opening in the top of the
bolster, a, central- wedge member secured to said
bolster and extending into said outer friction
right aperture therethrough, a bushing mounted
in said aperture and lining the inner surfaces
thereof, and friction cushioning means received
in said bushing, frictionally movable on the inner element, and intermediate spring-actuated fric
55 surfaces thereof, and acting between said bolster4
tion elements disposed between said outerand 55
and that part of the frame thereabove.
central friction elements.
'
5. A cushioning device comprising a wedge ele
10. In a railway truck, in combination, a side
ment, one end of which is notched to receive and frame having a bolster opening, a bolster with an
interlock lwith beading on an associated railway end received therein, resilient means supporting
truck side frame, a bushing in which the other said bolster from said frame, friction- cushioning 60
end of said wedge element is received, said bush
mea‘ns acting between each side portion of said
ing providing inner friction surfaces, friction bolster and said frame, each cushioning means
wedges disposed between the friction surfaces of comprising a wedge `member secured to said
said _bushing and said wedge element, resilient bolster, and another wedge member disposed be
65 means urging said friction wedges into engage
tween said bolster wedgemember and the corre
ment with said wedge element and bushing, and - sponding guide column of the frame and urged 65
means for mountingsaid bushing in‘position .in downwardly by a spring acting between upper
an associated bolster.
y
f
portions of said frame .and second~mentioned
6. In a railway truck, in combination, a side y wedge member.
.
.
.
~
'_
70 frame having a window opening, a load-carrying
1l. In a railway truck, in combination, a side 70
member with an end received therein, a spring frame having abolster opening, a bolster with an
serving to support said load-carrying member, end' received therein, resilient means supporting
and means for snubbing the action of said spring >said bolster fromv said frame, and friction cush
comprising an outer friction element, an inner ioning means acting between said _bolster and
friction element telescoping therein, one of -said frame for snubbing the action of said resilient
75
' 6
2,118,006
« means in both’directions, said cushioning means ' means supporting said bolster member from said
comprising a wedge' member secured t'o said
bolster and provided with friction surfaces, one
of which is inclined downwardly and outwardly,
and another of which is inclined downwardly and
inwardly, and spring actuated wedges disposed
between said wedge member and the adjacent
portions of the frame, one of which wedges acts
downwardly on one of said friction surfaces, and
the other of which acts upwardly on the other of
said friction surfaces.
12. In a railway truck, in combination, a side
frame member having a bolster opening, a bolster
member with an end received therein, resilient
15 means supporting said bolster from said frame,
and friction cushioning means acting between
said bolster and frame for snubbing the action
of said resilient means in both directions, said
cushioning means comprising two pairs of fric
20 tion surfaces on one of said members, one pair of
which is inclined downwardly and outwardly, and
the other pair of which is inclined downwardly
and inwardly, and_spring-actuated wedges dis
posed between said inclined surfaces and the
25 adjacent portions of the >other member, one pair
of which wedges acts downwardly on the down
wardly and outwardly inclined pair of said sur
faces, and the other pair of which acts upwardly
on the other pair of said~surfaces.
-
frame member, friction cushioning means acting
between said members for snubbing the recoil of
said resilient means, said friction cushioning
means comprising a wedge interlocked with one
of said members so as to move with said member
at all times and relative to said other member,
another Wedge disposed between said first-men
tioned wedge and the other member, and a verti
cally disposed spring acting between one of the 10
members and one of the wedges.
1'?. In a railway truck, in combination, a side
frame member having a bolster opening formed
between bolster guide columns, a bolster mem
ber hav-ing an end positioned within said open 15
ing and having portions overlapping said guide'
columns, springs for supporting said bolster end
within said opening and resilientV means for snub
bìng the recoil of said springs, said means com
prising a wedge secured to one of said members 20
against relative vertical movement, a wearing
member secured to the other of said members,
a second wedge having a wedging frictional en
gagement with said first-named wedge and wear
ing member, and spring means for urging said 25
last-named wedge into said frictional engage
ment with said first-named wedge and wearing
member.
18. In a railway-truck, in combination, a side
13. In a railway truck, in combination, a side ~ frame having a bolster opening, a bolster with 30
_frame member having a bolster opening, a bolster an end received therein, resilient means support
member with an end received therein, resilient ing said bolster from said frame, and friction
means supporting the bolster member from said means acting between said bolster and frame for
frame and friction means in the vertical plane snubbing the action of said resilient means, said
friction means comprising a housing secured to 35
35 of the side frame member acting between por
tions of said members for snubbing the recoil of the frame and extending into an opening pro
vided in the bolster, a. central wedge element se
said resilient means, said friction means com
prising a friction member'secured to one of said cured to said bolster and extending into said hous
members, a wedge movable with the other of said ing, and an intermediate spring-actuated wedge
interposed between said housing and central 40
40 members, a wedge interposed between said fric
30
tion member and said first-named wedge, and
separate resilient means for forcing one of said
wedges into frictional engagement with the other
of said wedges and friction member.`
14. In a railway truck, in combination, a side
45
frame having a. bolster opening, a bolster with
an end received therein, resilient means support
ing said bolster from said frame and friction.
cushioning means in the vertical plane of the re
50 silient means acting between said bolster and
` side frame, said friction cushioning means com
prising a friction element secured to the frame
and extending toward the-bolster, a'wedge ele
55
ment secured to the bolster and extending into
overlapping relationship with said friction ele
ment, and an intermediate spring-actuated wedge
interposed -between the said friction element and
wedge element.
-
' 15. In a railway truck, in combination, a side
60 vframe having a bolster opening, a bolster with
an end received therein, resilient means support
ing said bolster from said side frame and separate
friction cushioning means acting between said
bolster and side frame for snubbing the recoil of
65
said resilient means, said friction cushioning
means comprising an outer friction element se
cured to the frame, a seat member secured to the
bolster, a central wedge element engaging the
seat member and extending within said outer
friction element, and an intermediate spring
actuated wedge interposed between the outer and
central
elements. Y
1
16. In a railway truck, in combination, a side
frame member having a bolster'opening, a bolster
member having an end received therein, resilient
wedge.
,
A
19. In a railway truck, in combination, a side
frame having a bolster opening, a bolster with
an end portion received therein, resilient means
supporting said bolster from said side frame, and 45
friction means acting between said bolster and
side frame for snubbing the action of said resil
ient means, said4 friction means comprising a
housing secured to the side frame, a seat mem
ber secured to the bolster, a wedge interlocked 50
with'said seat member and extending into said
housing, and a spring-actuated wedge interposed
between the mst-mentioned `wedge and housing.
20. In a railway truck, in combination, a side
frame having a bolster opening, a bolster with 55
an end portion received therein, resilient means
supporting said bolster from said side frame, and
friction means acting between said bolster and
side frame for snubbing the action of said resil
ient means, said friction means comprising 'a
housing associated with said side frame and ex
tending into an opening provided in the top of
the bolster, a seat member positioned within and
secured to the bolster, a wedge secured to said
seat member and extending within said housing,
and a spring-actuated wedge interposed between
said first-mentioned wedge and housing.
21. In a railwayv truck, in combination, a side
frame having a bolster opening, a bolster with
an end received therein, resilient means support
70
ing said bolster from said' frame, and friction
cushioning means acting between said bolster'
and frame for snubbing the action of said resil
ient means in both directions, said cushioning
means comprising a wedge member having ñanges
7.5
2, _1 1 8,006
embracing said bolster end and provided with an
gularly >disposed’ friction surfaces, intermediate
wedges interposed between and engaging said
first-mentioned wedge and the adjacent portion
of the side frame, one of the intermediate Wedges
’ acting downwardly on one of said friction sur
faces and the other- of saidintermediate wedges
acting upwardly on the other of said friction sur-A
faces, and spring means interposed -between the
side frame and each of said intermediate wedges.
22.` In a railway truck, in combination, a side
'7
friction cushioning means received in and frie
tionally- engaging said bushing, said friction
cushioning means acting between said bolster and ,
side frame.
24. In a railway truck, in combination, a side
frame -having a bolster opening, a bolster with an
end portion received therein, resilient means sup
porting said bolster end, and a cushioning de
vice for snubbing the action of said resilient)
means comprising a wedge element, one end of 10
which isA notched to interlock with a portion of
said side frame, a bushing positioned in an aper~
> frame having a bolster opening, a bolster with an
, end portion received therein, resilient means sup " ture in said bolster end and receiving the other,
porting said bolster, and means for snubbing the
l5 action of said resilient means comprising a wedge
element associated with said frame and extend
ing into an aperture in >said bolster for trans
mission of vertical vforces therebetween in both
' directions, a bushing positioned ‘in 'said bolster
20 aperture and interlocked with said bolster, fric
tion means interposed between said wedge ele
ment and bushing. and resilient means associ
ated with said friction means. and wedge element
. for urging the former into engagement with the
25
30
end of said wedge element, and resiliently urged
friction elements engaging said' bushing and
wedge element.
i
,
15
25. In a railway truck, in combination, a side
frame having a bolster opening, a bolster with
an apertured end portion received therein, re
silient meansl supporting said bolster end, and 20
a cushioning device for snubbing the action of
said resilient means comprising a bushing lin
ing said aperture in said bolster end, a wedge
element interlocking with a portion of the side
wedge element and bushing.
» -frame and extending into said bushing, friction 25
23. In a railway truck, in combination. a side elements interposed betweenand in engagement
frame having a bolster opening, a bolster with l‘with said bushing and wedge element, and resil
an end portion received therein, an aperture in lent means acting between 'said wedge element
said bolster end, a bushing positioned in- said bol
and friction elements.
i
ster aperture and secured to said bolster, and _'
.
.
GIENN F. COUCH.
30
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